Do not require CLA on reference sync

Kordyjan · Kordyjan · commit ee85cb19c774 · 2022-12-07T12:54:57.000+01:00
diff --git a/.github/workflows/cla.yml b/.github/workflows/cla.yml
@@ -1,6 +1,8 @@
 name: Scala CLA
 on:
   pull_request:
+    branches-ignore:
+      - 'language-reference-stable'
   push:
     branches:
       - 'language-reference-backport'
